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Brothers volcano
Name Alias(es):
Brothers Seamount
Brothers Caldera
MGDS_FeatureID lowest in hierarchy:
Activity:
Maximum Temperature:
302
Latitude:
-34.8667
Longitude:
179.0667
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
1800
Minimum Depth (mbsl):
1150
Tectonic setting:
Volcano Number (if applicable):
Host Rock:
IAB, minor BABB, med-K andesite
Deposit Type:
PMS
Notes on Vent Field Description:
two separate areas of venting, one on the NW wall, one on the south wall; black smokers and shimmering water; Wright et al. (1998): "first direct evidence of postulated high-temperature hydrothermalism within the Kermadec–Havre arc–back-arc system"
Notes Relevant to Biology:
worms, limpets, white filamentous bacteria, shrimp, stalked barnacles; see Clark and O'Shea (2001)
Year and How Discovered (if active, visual confirmation is listed first):
1998 towed camera; 1996 dredging only
Discovery References (text):
(dredge samples only) I Wright et al. (1998) Discovery of hydrothermal sulfide mineralization from southern Kermadec arc volcanoes (SW Pacific). Earth Planet Sci Let. 164(1-2): 335-343
Stoffers et al., 1999, Longitudinal transect of the Kermadec-Havre Arc-Back-Arc System: Initial results of R/V Sonne Cruise SO-135, InterRidge News 8(1), 45-50.
Other References (text):
de Ronde, CEJ et al. (1999) First systematic survey of submarine hydrothermal plumes associated with active volcanoes of the southern Kermadec Arc, New Zealand: Initial results from the NZAPLUME cruise. InterRidge News 8(2): 35-39
de Ronde et al., 2001, Intra-oceanic subduction-related hydrothermal venting, Kermadec volcanic arc, New Zealand. Earth Planet. Sci. Lett., 193, 359-369
Clark MR, O’Shea S 2001. Hydrothermal vent and seamount fauna from the southern Kermadec Ridge, New Zealand. InterRidge News Vol 10(2): 14–17
de Ronde, C. et al. (2005) Evolution of a submarine magmatic-hydrothermal system: Brothers volcano, southern Kermadec arc, New Zealand. Economic Geology 100: 1097-1133.
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